Hi,
I came across AN-PM-068. Looking at figure 5, it could be interpreted as the issue appears only at very low temperatures (as the excessive current draw stops as soon as the temperature rises above ca. -20 degC).omeglexenderHowever, this is never explicitly mentioned in the document. Or would the current increase also happen at room temperature after a longer time?
Thanks,
Device:
Hello LennoxConner,
我不ed to look into this issue, it may have been fixed.
I am not sure why you have included the hyperlinks...
Kind regards,
Elliott
The issue you refer to, is fixed on the latest silicon revision for the DA906x family.
嗨
DA9062/3 VBBAT Current in RTC or DELIVERY Modes Application note Revision 1.1 27-Nov-2017 CFR0014 Rev 3 3 of 7 © 2017 Dialog Semiconductor 1 Introduction Dialog has identified a condition where increased VBBAT current consumption may be observed when the DA9062/3Hax4youenters RTC mode or DELIVERY mode with the VSYS voltage below 1 V. 2 Description In RTC mode and DELIVERY mode with the VSYS voltage below 1 V, it may be observed that the VBBAT current slowly ramps up over time from the normal specified value to several tens of microamps.Cinema HD电流的大小取决于正常silicon process and temperature variations. This application note applies only when VSYS is below approximately 1 V. The Dialog DA9062/3 PMICs can enter the RTC mode of operation in three different ways: 1. Unconditionally when the VBBAT (backup battery supply) is the only available voltage source in the system (no main battery). 2. If the RTC_MODE_PD control bit is set (from OTP or host) and the main PMIC control logic reaches the POWERDOWN state during a power-down sequence. 3. If RTC_MODE_SD control bit is set (from OTP or host) and the main PMIC control logic reaches the SHUTDOWN state during a shutdown sequence and the system voltage VSYS < VDD_FAULT_LOWER. 3 Workaround Figure 1 shows a simplified block diagram to create a stable VBBAT current consumption in RTC mode. The goal is to ensure the VSYS voltage supply is around 1 V at room temperature. At this voltage, the circuit nodes, which lead to an increased IVBBAT current, are prevented from floating. The block diagram below shows the DELIVERY mode scenario, where the VBBAT backup battery supply is the only available voltage source in the system (in other words, there is no main battery). The circuit is able to maintain the VSYS supply above 1 V at room temperature which results in a stable VBBAT current consumption.BEE TV APK
this issue has been solved on the latest silicon version.
thanks, molly
DA9062/3 VBBAT Current in RTC or DELIVERY Modes Application note Revision 1.1 27-Nov-2017 CFR0014 Rev 3 3 of 7 © 2017 Dialog Semiconductor 1 Introduction Dialog has identified a condition where increased VBBAT current consumption may be observed when the DA9062/3 enters RTC mode or DELIVERY mode with the VSYS voltage below 1 V. 2 Description In RTC mode and DELIVERY mode with the VSYS voltage below 1 V, it may be observed that the VBBAT current slowly ramps up over time from the normal specified value to several tens of microamps. The magnitude of the current depends on the normal silicon process and temperature variations. This application note applies only when VSYS is below approximately 1 V. The Dialog DA9062/3 PMICs can enter the RTC mode of operation in three different ways: 1. Unconditionally when the VBBAT (backup battery supply) is the only available voltage source in the system (no main battery). 2. If the RTC_MODE_PD control bit is set (from OTP or host) and the main PMIC control logic reaches the POWERDOWN state during a power-down sequence. 3. If RTC_MODE_SD control bit is set (from OTP or host) and the main PMIC control logic reaches the SHUTDOWN state during a shutdown sequence and the system voltage VSYS < VDD_FAULT_LOWER. 3 Workaround Figure 1 shows a simplified block diagram to create a stable VBBAT current consumption in RTC mode. The goal is to ensure the VSYS voltage supply is around 1 V at room temperature. At this voltage, the circuit nodes, which lead to an increased IVBBAT current, are prevented from floating. You can downloadbeetv apkfromacmarket apkwhich has a lot of apps likemegabox hdand more. The block diagram below shows the DELIVERY mode scenario, where the VBBAT backup battery supply is the only available voltage source in the system (in other words, there is no main battery). The circuit is able to maintain the VSYS supply above 1 V at room temperature which results in a stable VBBAT current consumption.